Don't start HTTP:
 httpd_flags=NO
Start HTTP with no flags:
 httpd_flags=""

For other daemons that you might install with the system via ports or other
ways, you will use the /etc/rc.local file. For example, I've installed a
daemon which lies at /usr/local/sbin/daemonx. I want this to start at boot
time. I would put an entry into /etc/rc.local like this:

if [ -x /usr/local/sbin/daemonx ]; then
             echo -n ' daemonx';       /usr/local/sbin/daemonx
fi